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Stat of the Week: APR

APR, or Adjusted Pitching Runs, measures the number of runs a pitcher prevented as compared to a league-average pitcher in a neutral park in the same number of innings. Derived from the pitching component of linear weights, or pitching runs, APR includes an adjustment for ballparks and is based on all runs allowed, not just the earned runs.

APR = L x IP – (R/PF)

Where “L” is the league average of runs per inning and “PF” is the park factor for the pitcher’s home park.

Aaron Perez View All

22-year-old student attending California State University, Fullerton. Pursuing a bachelor's degree in Business Administration with a focus in Legal Studies. Former baseball player interested in a career in Sports Management. Go Yankees!

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